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FIBOCOM MC610 Series Hardware Guide 23/70
Earphone MIC input positive
Earphone MIC input negative
Key pad input 4
KEYIN cannot be used alone. Keep it floating
if not used.
SPI_MOSI
Multiplexing function SPI_MOSI/GPIO
Keep it floating if not used.
SPI_CLK
Multiplexing function SPI_CLK/GPIO
Keep it floating if not used.
SPI_MISO
Multiplexing function SPI_MISO/GPIO
Keep it floating if not used.
SPI_CS
Multiplexing function SPI_CS_N/GPIO
Keep it floating if not used.
Analog-to-digital converter interface 2
1k in series when in use
GPIO12
Support function JTAG_TDO/SD2_D3
Analog-to-digital converter interface 3